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Vulnerability record · CVE-2011-1471 · published 20 March 2011

CVE-2011-1471: Php vulnerability

Php · Php

Integer signedness error in zip_stream.c in the Zip extension in PHP before 5.3.6 allows context-dependent attackers to cause a denial of service (CPU consumption) via a malformed archive file that triggers errors in zip_fread function calls.

4.3 CVSS 2.0 Medium EPSS 13% · top 3.8% CWE-189 · CWE-189
4.3CVSS 2.0 base score
13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
20References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

Integer signedness error in zip_stream.c in the Zip extension in PHP before 5.3.6 allows context-dependent attackers to cause a denial of service (CPU consumption) via a malformed archive file that triggers errors in zip_fread function calls.

AV:N/AC:M/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://bugs.php.net/bug.php?id=49072 ExploitVendor Advisory
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html Mailing ListThird Party Advisory
http://support.apple.com/kb/HT5002 Third Party Advisory
http://www.debian.org/security/2011/dsa-2266 Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2011:052 Broken Link
http://www.mandriva.com/security/advisories?name=MDVSA-2011:053 Broken Link
http://www.php.net/ChangeLog-5.php Vendor Advisory
http://www.redhat.com/support/errata/RHSA-2011-1423.html Third Party Advisory
http://www.securityfocus.com/bid/46975 Third Party AdvisoryVDB Entry
http://www.vupen.com/english/advisories/2011/0744 Permissions Required
http://bugs.php.net/bug.php?id=49072 ExploitVendor Advisory
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html Mailing ListThird Party Advisory
http://support.apple.com/kb/HT5002 Third Party Advisory
http://www.debian.org/security/2011/dsa-2266 Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2011:052 Broken Link
http://www.mandriva.com/security/advisories?name=MDVSA-2011:053 Broken Link
http://www.php.net/ChangeLog-5.php Vendor Advisory
http://www.redhat.com/support/errata/RHSA-2011-1423.html Third Party Advisory
http://www.securityfocus.com/bid/46975 Third Party AdvisoryVDB Entry
http://www.vupen.com/english/advisories/2011/0744 Permissions Required

Track CVE-2011-1471 inside VULONE

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2011-1471), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.